At that time they made a calf and offered a sacrifice to the idol, rejoicing in the works of their hands.
41. And they made a calf. We may easily gather by that which goeth before, why they were more delighted in that figure than in any other. For although Egypt did swarm with innumerable idols, yet it is well known that they made the greatest account of an ox.
After forty years buried in obscurity, Moses, now eighty and seemingly past service, enters his calling through a vision in the wilderness. This teaches that God confines Himself to no place; He met Moses in a remote desert as readily as in a temple. The bush burning unconsumed prefigures Israel in Egypt's furnace, afflicted yet unbroken, and perhaps foreshadows Christ: divinity manifest in flesh.
AI summary
Commenting on Acts 7:30-41
And they made a calf in those days,.... Whilst Moses was in the mount; this was done in imitation of the Egyptian idol Apis or Serapis, which was an ox or a bullock; and it was made of the golden earnings of the people, which were melted down, and cast into the form of a calf, and graved by Aaron with a graving tool, Exo...